Non-Egr Engines; Synthetic Oils; Coolant; Fully-Formulated Antifreeze - Detroit Diesel EPA04 MBE 900 Operator's Manual

Non-EGR Engines

API CI-4 or CH-4 oils are
recommended for use in all non-EGR
engines. These oils are intended for
engines with open breather systems.
Detroit Diesel POWER GUARD
oils meet these specifications and are
recommended.

Synthetic Oils

Synthetic oil may be used in MBE900
engines, provided they are of the
correct API designation and viscosity,
as required for non-synthetic oil.
Synthetic oil offers improved
low-temperature flow properties
and high-temperature resistance to
oxidation. However, it is generally
more costly than non-synthetic oil.
Review carefully the product
information published by the synthetic
oil manufacturer. Performance
additive systems often respond
differently in synthetic oil. Use of
synthetic oil does not change the
recommended oil change service
interval.

Coolant

Coolant is a mixture of water and
antifreeze. Under normal conditions,
it is a mixture of 50 percent water
and 50 percent antifreeze, but under
extreme cold weather conditions, as
much as 60 percent antifreeze can be
All information subject to change without notice. (Rev. )
DDC-SVC-MAN-0055 Copyright © 2009 DETROIT DIESEL CORPORATION
MBE 900 OPERATOR'S MANUAL
added. For reasons of anticorrosion
protection and to raise the boiling
point, the coolant with a minimum
50% of antifreeze must remain in the
cooling system all year round.
Regardless of mileage, replace
the coolant every two years since
the degree of corrosion protection
gradually drops with time.

Fully-Formulated Antifreeze

Antifreeze approved for use in the
MBE900 engine is a mixture of
glycol compounds (either ethylene
glycol or propylene glycol), and
corrosion inhibitors. Antifreeze
containing glycol compounds and
corrosion inhibitors is known as
fully-formulated antifreeze.
Fully-formulated antifreeze has the
following properties:
□ It protects the radiator and engine
from freezing.
□ It provides protection against
corrosion and cavitation for all
components in the cooling system.
□ It raises the boiling point of the
coolant. This slows the rate of
evaporation, avoiding coolant loss
at high temperatures.
57